package com.uxhao.gateway.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.reactive.CorsWebFilter;
import org.springframework.web.cors.reactive.UrlBasedCorsConfigurationSource;
import org.springframework.web.util.pattern.PathPatternParser;

/**
 * 统一跨域解决
 * @author uxhao
 * @date 2021/1/27 14:59
 */
@Configuration
public class CorsConfig {
    @Bean
    public CorsWebFilter corsFilter() {
        //1.添加CORS配置信息

        CorsConfiguration config = new CorsConfiguration();
        //1) 允许的请求方式
        config.addAllowedMethod("*");
        //2) 允许的域
        config.addAllowedOrigin("*");
        //3）允许的头信息
        config.addAllowedHeader("*");

        //2.添加映射路径，我们拦截一切请求
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource(new PathPatternParser());
        source.registerCorsConfiguration("/**", config);

        //3.返回新的CorsFilter.
        return new CorsWebFilter(source);
    }
}

